【Daily Question】9.24 Reply +2； For +3~8
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This post was last edited by zjp on 2015-9-25 at 14:54. In order to increase the popularity of the chemical analysis section, the previous 【Weekly Topic】 activity has been replaced with a 【Daily Question】 activity; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】 (Single-choice question) In which of the following situations does the quality of the reagent increase? A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing blue vitriol has its lid open. Reply with your answers; participating in the quiz earns +2 wealth points. Those who get all answers correct will receive an additional +3 to +8 wealth points. Extra rewards will be given for thorough analyses and explanations of the questions or answers, or for detailed calculation processes. If your answers are correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation.
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In the following situations, what causes an increase in reagent quality is (C). A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt and acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing bluestone has its lid open
In the following situation, what causes an increase in the quality of the reagent is (C. The bottle containing solid sodium hydroxide has an open mouth).
In the following situations, what leads to an increase in reagent quality is (D). A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt and acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing bluestone has its lid open
Sodium hydroxide is hygroscopic and also absorbs carbon dioxide from the air
In the following situations, it is A and C that cause an increase in reagent quality
Option C: The bottle containing solid caustic soda has an open mouth
In which of the following situations does it lead to an increase in reagent quality? A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt and acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing blue vitriol has its lid open. c
In the following situations, what causes an increase in reagent quality is (C). A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt and acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing bluestone has its lid open
In the following situations, what causes an increase in reagent quality is (C). A. The bottle containing concentrated acid has its lid open. B. The bottle containing concentrated salt and acid has its lid open. C. The bottle containing solid sodium hydroxide has its lid open. D. The bottle containing bluestone has its lid open